Horace Trumbauer (December 28, 1868 – September 18, 1938) was a prominent American architect of the Gilded Age, known for designing residential manors for the wealthy.

In 1906, Trumbauer hired Julian Abele, the first African-American graduate of the University of Pennsylvania Architecture Department, promoting him to chief designer in 1909.

With the exception of the chapel at Duke University (1934), Abele never claimed credit for any of the firm's buildings designed during Trumbauer's lifetime.

Trumbauer's architect Howell Lewis Shay is credited with the building's plan and massing, although the perspective drawings appear to be in Abele's hand.

But, perched on Fairmount Hill and terminating the axis of the Benjamin Franklin Parkway, it is now considered to be the most magnificently situated museum in the United States.

A fine example of Queen Anne revival architecture, it still stands today as the Jenkintown-Wyncote station and was added to the National Register of Historic Places in 2014.

Despite tremendous success and his apparent ability to impress wealthy clients, Trumbauer suffered from overwhelming shyness and a sense of inferiority about his lack of formal education.